The person making the report against Farrow - were they vulnerable? have they been targeted by other people which makes them more vulnerable? Are they a victim of modern slavery, exploitation? Or do we just ignore that fact?
No, they're not vulnerable. They are not a victim of modern slavery or exploitation. They are a criminal. They have a law degree but are barred from practising law because of their criminal convictions. Even a cursory glance at their social media activity demonstrates the kind of person they are. Does the fact that they have a history of making malicious allegations not ring any alarm bells at all? Really?
You think investigations should be impartial? By which you mean, if a proven violent criminal makes a completely unevidenced accusation against an innocent person with no criminal history, then you are more than happy to harass that innocent person by arresting her, removing her from her family, taking her devices away (including one belonging to her child) and holding on to them for several months?
Are you serious? What on earth happened to common sense?
I'm afraid it's exactly this sort of attitude that allows domestic abusers to claim that they are the victims of domestic abuse. And it's how you end up with situations like that of Shana Grice - a woman who repeatedly reported her fears to the police that her ex was going to kill her, and who was fined for wasting police time.
And then, guess what, was murdered by her ex.
Everything you've written suggests to me that you haven't learnt anything from that case, or other similar ones. I don't know what your intention was in posting in this thread, but I'm afraid it's resulted in my confidence in the police being even lower than it was before, and trust me, it was pretty damn low to start with.